Barcelona have reached a five-year, €150m (£125m) deal with the Qatar Foundation for it to join Unicef as the Spanish champions' shirt sponsor. Barcelona will receive €30m per season from 2011-12 from the nonprofit organisation, located in the gulf state where the 2022 World Cup will be played.

Barcelona say they will seek a way to combine the two logos but the Qatar Foundation would be the prevalent one if a solution cannot be found. Barcelona's maroon and blue striped shirt was without a sponsor before the club put the children's charity on their shirt fronts in 2006.

The arrangement with the Qatar Foundation marks the first time in the Catalan team's 111-year history that they will be paid to advertise on their jerseys.

Senior club executives described the deal as a "remarkable milestone because it represents a record level of revenue for a football club and has more value still in the current economic climate".

The Qatar Foundation was founded in 1995 by Sheikh Hamad bin Khalifa Al-Thani, the emir of Qatar, to bolster education, science and development of the tiny gulf state. The first lady, Sheikha Mozah bint Nasser Al-Missned, is the orgnisation's chairperson.